A Study of the Inter‐Form Reliability of DAT Tests over a Four‐Month Period
Jack C. Merwin · The Personnel and Guidance Journal · 1965
Form B of six of the DAT tests was administered to eighth grade students in the spring. The following fall the same students completed Form A. The correlation between the two sets of scores ranged from .69 for Clerical Speed and Accuracy to .88 for Verbal Reasoning.